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Lattice computation of the electromagnetic contributions to kaon and pion masses
S. Basak, A. Bazavov, C. Bernard +12
We present a lattice calculation of the electromagnetic (EM) effects on the masses of light pseudoscalar mesons. The simulations employ 2+1 dynamical flavors of asqtad QCD quarks,…
Electromagnetic effects on the light pseudoscalar mesons and determination of
MILC Collaboration, S. Basak, A. Bazavov +15
The MILC Collaboration has completed production running of electromagnetic effects on light mesons using asqtad improved staggered quarks. In these calculations, we use quenched ph…
Electromagnetic effects on the light hadron spectrum
MILC Collaboration, S. Basak, A. Bazavov +16
For some time, the MILC Collaboration has been studying electromagnetic effects on light mesons. These calculations use fully dynamical QCD, but only quenched photons, which suffic…
Finite-volume effects and the electromagnetic contributions to kaon and pion masses
S. Basak, A. Bazavov, C. Bernard +14
We report on the MILC Collaboration calculation of electromagnetic effects on light pseudoscalar mesons. The simulations employ asqtad staggered dynamical quarks in QCD plus quench…
Electromagnetic contributions to pseudoscalar masses
S. Basak, A. Bazavov, C. Bernard +16
We report on the calculation by the MILC Collaboration of the electromagnetic effects on kaon and pion masses. These masses are computed in QCD with dynamical (asqtad staggered) qu…
Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses
S. Basak, A. Bazavov, C. Bernard +16
We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary f…
The Deuteron and Exotic Two-Body Bound States from Lattice QCD
S. R. Beane, E. Chang, W. Detmold +7
Results of a high-statistics, multi-volume Lattice QCD exploration of the deuteron, the di-neutron, the H-dibaryon, and the Xi-Xi- system at a pion mass of m ~ 390 MeV are presente…
SU(2) Low-Energy Constants from Mixed-Action Lattice QCD
S. R. Beane, W. Detmold, P. M. Junnarkar +6
An analysis of the pion mass and pion decay constant is performed using mixed-action Lattice QCD calculations with domain-wall valence quarks on ensembles of rooted, staggered n_f…
The I=2 pipi S-wave Scattering Phase Shift from Lattice QCD
S. R. Beane, E. Chang, W. Detmold +7
The pi+pi+ s-wave scattering phase-shift is determined below the inelastic threshold using Lattice QCD. Calculations were performed at a pion mass of m_pi~390 MeV with an anisotrop…
High Statistics Analysis using Anisotropic Clover Lattices: (IV) Volume Dependence of Light Hadron Masses
S. R. Beane, E. Chang, W. Detmold +7
The volume dependence of the octet baryon masses and relations among them are explored with Lattice QCD. Calculations are performed with n_f=2+1 clover fermion discretization in fo…
Present Constraints on the H-dibaryon at the Physical Point from Lattice QCD
S. R. Beane, E. Chang, W. Detmold +8
The current constraints from lattice QCD on the existence of the H-dibaryon are discussed. With only two significant lattice QCD calculations of the H-dibaryon binding energy at ap…
Evidence for a Bound H-dibaryon from Lattice QCD
S. R. Beane, E. Chang, W. Detmold +8
We present evidence for the existence of a bound H-dibaryon, an I=0, J=0, s=-2 state with valence quark structure uuddss, at a pion mass of m_pi ~ 389 MeV. Using the results of Lat…
High Statistics Analysis using Anisotropic Clover Lattices: (III) Baryon-Baryon Interactions
Silas R. Beane, William Detmold, Huey-Wen Lin +5
Low-energy baryon-baryon interactions are calculated in a high-statistics lattice QCD study on a single ensemble of anisotropic clover gauge-field configurations at a pion mass of…
Meson-Baryon Scattering Lengths from Mixed-Action Lattice QCD
Aaron Torok, Silas R. Beane, William Detmold +5
The , , , , and scattering lengths are calculated in mixed-action Lattice QCD with domain-wall valence quarks on the asqtad-impro…
High Statistics Analysis using Anisotropic Clover Lattices: (II) Three-Baryon Systems
Silas R. Beane, William Detmold, Thomas C Luu +5
We present the results of an exploratory Lattice QCD calculation of three-baryon systems through a high-statistics study of one ensemble of anisotropic clover gauge-field configura…
High Statistics Analysis using Anisotropic Clover Lattices: (I) Single Hadron Correlation Functions
Silas R. Beane, William Detmold, Thomas C. Luu +5
We present the results of high-statistics calculations of correlation functions generated with single-baryon interpolating operators on an ensemble of dynamical anisotropic gauge-f…
Multi-Pion States in Lattice QCD and the Charged-Pion Condensate
William Detmold, Martin J. Savage, Aaron Torok +4
The ground-state energies of systems containing up to twelve 's in a spatial volume V ~ (2.5 fm)^3 are computed in dynamical, mixed-action lattice QCD at a lattice spacing of…
Multi-Pion Systems in Lattice QCD and the Three-Pion Interaction
Silas R. Beane, William Detmold, Thomas C. Luu +3
The ground-state energies of 2, 3, 4 and 5 π^+'s in a spatial volume V (2.5 fm)^3 are computed with lattice QCD. By eliminating the leading contribution from three-π^+ interactions…
The K+K+ Scattering Length from Lattice QCD
Silas Beane, Thomas Luu, Kostas Orginos +4
The K+K+ scattering length is calculated in fully-dynamical lattice QCD with domain-wall valence quarks on the MILC asqtad-improved gauge configurations with rooted staggered sea q…
Precise Determination of the I=2 pipi Scattering Length from Mixed-Action Lattice QCD
Silas R. Beane, Thomas C. Luu, Kostas Orginos +4
The I=2 pipi scattering length is calculated in fully-dynamical lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations (with fourth-rooted st…